Vapor barrier and adhesive applicators



May 11, 1965 F. w. CURTIS VAPOR BARRIER AND ADHESIVE APPLICATORS 2 Sheets-Sheet 1 Filed July 18, 1960 INVENTOR.

- 350 FeAMe w. ever/s Fm. E

May 11, 1965 F. w. CURTIS 3,

VAPOR BARRIER AND ADHESIVE APPLICATORS Filed July 18, 1960 2 Sheets-Sheet 2 INVENTOR. Ml. ((12775 A TTOENEYS United States Patent 3,183,139 VAPOR BARRIER AND ADHESIVE APPLECATQF-S Frank W. Curtis, Chagrin Falls, (ihio, assignor to Lexsuco, Inc, Solon, Ohio, a corporation of Ohio Filed July 18, 1960, Ser. No. 43,614 1 Claim. (Cl. 156-575) This invention relates to roof surfacing apparatus and more particularly to surfacing apparatus for applying roofing sheet material and suitable adhesives for bonding said sheet material to the surface to be covered.

This application is a continuation-in-part of my copcnding application Serial No. 619,163, filed on October 30, 1956 for Vapor Barrier and Adhesive Applicators.

An object of the present invention is to provide surfacing apparatus for applying vapor barrier sheet material to a root surface while simultaneously applying suitable adhesive material to the sheet material to effect a good bond between the sheet material and the roof surface.

Another object of the present invention is to provide surfacing apparatus for applying vapor barrier sheet material to a root surface which includes means for supporting a roll of vapor barrier sheet material, means forming an adhesive reservoir, means for guiding said sheet material as it is being applied, means for transferring the adhesive contained in said reservoir means to one or both surfaces of said sheet material, and means for applying a uniform pressure on said sheet material to effect a good bond between said sheet material and said roof surface.

Still another object of the present invention is to provide novel apparatus which may be used for applying adhesive material to vapor barrier sheet materials used in connection with root surfaces, and also for applying adhesive materials directly to the roof surface it such function be desired.

Another object of the present invention is to provide surfacing apparatus for applying vapor barrier sheet material and suitable adhesive material characterized by its structural simplicity, the ease of assembly of its parts, its strong and sturdy nature and its low manufacturing cost. Other features of this invention reside in the arrangement and design of the parts for carrying out their appropriate functions.

Further objects of the present invention and certain practical advantages will be referred to in or will be evident from the following description of one embodiment of the invention, as illustrated in the accompanying drawings in which:

.FIG. 1 is a perspective view of an applicator embodying the present invention; I

FIG. 2 is a perspective view of such applicator showing its removable roll assembly partially removed to more clearly illustrate the drive means therefor;

' FIG. 3 is a side perspective view showing the left side of the applicator and the drive means between the rolls of the removable roll assembly; and

FIG. 4 is a front perspective View of the applicator.

Before describing in detail-the herein disclosed embodiment of the invention, it is to be understood that the present invention is not limited to the structural details or the particular arrangement of parts herein shown, as devices embodying the present invention may take other forms. It also is to be understood that the phraseology and terminology herein used are for purposes of description and not of limitation, as the scope of the present invention is denoted by the appended claim.

In the accompanying drawings, I have shown an embodiment of a vapor barrier and adhesive applicator wherein the adhesive pick-up roll and the coating roll same in substantial engagement.

are constructed as a separate assembly which is intended to be remova-bly mounted Within the applicator framework, being in addition, automatically driven so as to provide for the efiicient deposition of the vapor barrier material to the roof stiucture to be covered.

With reference now directed particularly to FIG. I, the instant embodiment of vapor barrier and adhesive applicator is seen to include a rectangular framework 3% which mounts an adhesive hopper as is indicated in its entirety by the reference numeral 301.

A suitable adhesive tray or reservoir as indicated at 3&4, is mounted upon the opposite end of the aforesaid framework 300, said reservoir having an open top and being thus disposed so as to receive and hold a suitable quantity of adhesive material therein.

The pick-up roll and coating roll 306 and 307 respectively of the removable roll assembly, are seen to be suspended between the opposed ends of a pair of tie bars 309 in tandem relation to each other and in such manner so as to have the peripheral surfaces of the The pick-up roll 306 is preferably mounted on a shaft 310 so as to be rotatable with the same, the ends of said shaft, in addition, each extending beyond its adjacent tie bar and journalled within one of a pair of channel members 311.

The coating roll MP7 is likewise seen to be mounted on a shaft 313, said shaft, at its one end, projecting through its supporting tie bar and mounting a sprocket 314.

Apair of channel members 316 are each rigidly attached at one end by welding or the like to one of the aforementioned tie bars, 3&9, preferably intermediate the pick-up and coating rolls 3% and 307 respectively, each of said channel members 316 extending inwardly of and across the aforesaid channel members 311 being preferably rigidly attached to the latter intermediate the ends thereof. A guide channel 322 is attached to the inside face of each vertical side wall 364a of the aforementioned adhesive reservoir 304, said channels being substantially opposite each other and preferably facing toward the center of said reservoir.

Suitable handles as is indicated at 325 are provided on the ends of the aforementioned channel members 311 to thus accommodate lifting the roll assembly whereby said channel members 311 are adapted to be accommodated within the guide channels 322, said assembly being thereafter partially lowered Within said reservoir so as to locate the pick-up roll 3% within the latter and thus positioned to convey adhesive material to the coating roll 3&7.

A suitable pin 326 carried on one end of a link chain 326a may be accommodated within mating apertures formed in said interfitting channel elements 311 and 322 to thus releasably lock said assembly within said reservoir.

As shown, the instant adhesive applicator is supported upon a pair of wheels 327 which are seen to be mounted upon a shaft 328, said shaft, as best seen in FIG. 1, being journalled within a pair of spaced angle brackets 330 rigidly attached to and depending from the rear wall Stidc of the aforementioned adhesive-resrvoir 334.

A pressure roll 350 is likewise seen to be rotatably suspended between a pair of depending brackets 351, the latter preferably being attached to the aforesaid framework forwardly of the hopper 301, said pressure roll being thus positioned to engage the top surface of the vapor barrier sheet material and to thus press said material firmly against the aforesaid surface to be covered.

A support roll 319 is rigidly mounted to and between the free ends of the channel members 316, and a similar support roll 326 is rotatably suspended between the adjacent ends of the channels 311.

Said support rolls, as thus mounted, are adapted to cradle a roll of vapor barrier sheet material as is identified by the reference character R, said material being unrolled and extended around and over the aforesaid coating' roll 307 and thence downwardly through said framework 390 and under the pressure roll 350 whereby the same is pressed firmly against the roof structure being processed.

Suitable guides 321 carried on the upper ends of the channel members 311 are effective to guide the sheet material to the coating roll 307 as the same is dispensed from the roll R.

A manipulating bar 352 may be attached to the forward end of the aforementioned framework 330, being preferably spaced outwardly therefrom and suspended between a pair of arm members 353 to thus accommodate for manually rolling the applicator assembly along the roof structure to be processed.

A suitable brush 354 may likewise be attached to the framework 300 between the pressure roll 350 and hopper 301 being preferably of such length as to extend completely thereacross and thus positioned to engage the top surface of said vapor barrier material just subsequent to its being applied to the aforesaid surface whereby any wrinkles and/or creases formed therein are readily removed.

As best seen in FIG. 3, the diameter of the pressure roll 350 is substantially less than the diameter of the supporting wheels 327. And, as will be recognized, oftentimes a roof structure to be covered may have corrugations of such dimension as to partially accommodate the pressure roll 35% whereby the same may become lodged therein to thus prevent the applicator to be moved smoothly across said surface.

To prevent this from occurring the instant applicator is provided with an additional supporting wheel 3% as best seen in FIG. 1, and which is rotatably suspended from the free end of a suitable bracket 36!, the latter being securely fastened to the rear wall of the adhesive reservoir 304, said supporting wheel 369 being thus suspended preferably centrally between said wheels 327 and substantially intermediate the latter and the aforementioned pressure roll 350.

With this assembly, the instant applicator is supported upon the aforementioned pair of wheels 327 and the centrally disposed wheel 360, said wheels thus defining a tripod type of supporting assembly which is operable to prevent the framework 360 from tipping in the event the pressure roll 350 is moved over one of the aforementioned corrugations in the roof structure and to thereby prevent said roll frombecoming lodged therein.

As previously mentioned, the pick-up and coating roll assembly is intended to be automatically driven to provide for the efiicient transfer of the vapor barrier sheet material to the roof structure being covered. To accomplish this a drive sprocket 340 is mounted on one of the shaft 328 so as to be rotatable with the same. A T-shaped support bar 342 is seen to have its base leg 342a securely fastened to the framework 300 preferably directly above the aforementioned drive sprocket 344. A sprocket as is indicated at 344, is rotatably mounted to and adjacent each end of the cross bar 342b of said T-shaped support 342, and a suitable endless chain 345 is passed around the latter and the drive sprocket 340 located centrally therebelow. As best seen in FIG. 2, said endless link chain 345 is preferably of such dimension as to loosely pass therearound.

As the adhesive and coating roll assembly, as above described, is lowered within its guiding channels 322, the sprocket 314 disposed on the end of the shaft 313 mounting the coating roll 367, is adapted to engage the slack portion of said endless link chain 345 extending between the sprockets 344, being thus operable to draw the same downwardly with said assembly and toward the aforementioned adhesive reservoir 304 so as to pull said endless chain taut between its supporting sprockets. In this 4 manner, said endless link chain 345 positively linkably engages the sprockets 344), 344 and 314.

With this construction, it will be realized that as the applicator is manually moved forwardly upon its supporting wheels 327 and 360, for example from right to left as viewed in FIG. 1 to apply the vapor barrier material to the roof structure as will be understood, the rotation of the wheels 327 and shaft 328 will thus cause its connected drive sprocket 340 to also rotate whereby the interconnected sprockets 344 and 314 will likewise be actuated with the same which is hence effective to rotate the coating roll 307.v

And, with the roll of vapor barrier sheet material as is indicated by the reference character R, being passed over and in engagement with the aforesaid coating roll, the underside of said material will thereby be coated with the adhesive prior to its being applied to the roof structure.

As best seen in FIG. 3, a suitable gear 347 is mounted on the opposite end of the shaft 313 supporting the coat ing roll 307, and is adapted to mesh with a pinion 348 similarly carried on the shaft 310, said gear being preferably sandwiched between a pair of circular plates 349. In this manner, as the coating roll 307 is rotatably driven, the pick-up roll 306 will also rotate to thereby continuously pick-up adhesive material from said reservoir and apply the same to the aforesaid coating roll 307.

The instant applicator assembly may oftentimes be utilized on job installations which require its being turned within a substantially small area so as to position the same for applying the next adjacent layer of vapor barrier material to said roof structure.

For this purpose, a pair of wheels 370 is rotatably supported upon a shaft member 371 preferably adjacent the forward end of the framework 380, said wheels being disposed exteriorly and forwardly of the supporting wheels 327.

The diameter of the wheels 370 is such that with the applicator assembly being supported on its wheels 327 and 360, said wheels 370 are spaced above the roof structure being processed.

Upon pressing downwardly upon the aforementioned manipulating bar 351, the framework 330 is intended to be tilted about the wheels 327 thus lowering the wheels 37%) into engagement with the aforesaid roof structure. And, thereafter upon continuing to tilt said framework upwardly about the now engaged wheels 370 to thereby raise the supporting wheels 327 off said roof structure, the applicator assembly may be readily turned about said wheels 370 within a radius as is determined by the selective spacing between the latter.

A pair of rail members 375 mounted on the support roll 319 prevent the roll of sheet material R from becoming dislodged from its cradle as the applicator assembly is thus tilted.

Having thus described a vapor barrier and adhesive applicator embodying the present invention, it is understood that the same is susceptible to various modifications, combinations and arrangements of parts without departing from the inventive concepts thereof as are defined in the appended claim.

What is claimed is:

Surfacing apparatus for applying sheet material to a roof structure and the like comprising a framework, means for supporting a roll of sheet material on said framework, a reservoir supported on said framework for holding a predetermined quantity of adhesive therein, an adhesive applicator roll assembly for applying adhesive to said sheet material including an adhesive pick-up roll, a sheet material coating roll, means for rotatably mounting said rolls whereby the surfaces of the same are in substantial engagement, channel means in said reservoir, means on said roll assembly slidably accommodated in said channel means effective to releasably mount said assembly on said framework and to locate said pick-up roll in contact with the adhesive in said reservoir, said sheet 5 material being in contact with said coating roll and directed from the latter to said roof structure, a shaft carried on said framework, a pair of wheels mounted on said shaft supporting said framework above said roof structure and operable to move the same therealong, a drive 5 sprocket carried on said shaft, sprocket means on said rolls of said assembly, link chain means interconnecting said drive sprocket and said sprocket means and responsive to the rotation of said shaft to rotatabiy actuate said rolls of said assembly.

References Cited by the Examiner UNITED STATES PATENTS 2,500,583 3/50 Smith 156575 3,007,838 11/61 Eigenrnann 156-577 EARL M. BERGERT, Primary Examiner.

JOSEPH D. BEIN, ALEXANDER WYMAN,

Examiners. 

